Accumulator.



PATENTED NOV. 29, 1904.

H. A. BROOKS.

ACGUMULATOR.

APPLICATION FILED OCT. 4, 1902.

2 SHEBTS-SHEET 1.

no MODEL.

Awe/775w W/ 7776 5se5 PATENTED NOV. 29, 1904.

H. A. BROOKS.

AGGUMULATOR.

AIfPLIOATION FILED OCT. 4, 1902.

2 BHEETB-SHEET 2.

N0 MODEL.

N0. 776,107. Patented November 29, 1904.

UNITED STATES PATENT OFFICE.

HARRY A. BROOKS, OF LOS ANGELES, CALIFORNIA, ASSIGNOR TO THE ACCOUNTOGRAPH COMPANY, OF SAN-TA PAULA, CALIFORNIA, A COR- PORATION OF CALIFORNIA.

ACCUMULATOR.

SPECIFICATION forming part of Letters Patent No. 776,107, dated November 29, 1904.

Application filed October 4, 1902. Serial No. 125,964. (No model.)

To whom it y COW/067'! Similar characters of reference designate Beitknown that I, HARRYA. BRooKs, aciticorresponding parts throughout the several Zen of the United States, residing at Los Anviews.

geles, in the countyof Los Angeles and State Referring to the drawings, and particu- 5 of California, have invented certain new and larly to Figs. 1 to 3 thereof, the reference useful Improvements in Accumulators; and I character 1 designates a portion of a supportdo hereby declare the following to be a full, ing frame or structure, which may be conclear, and exact description of the invention, structed with ears or lateral extensions 2, such as will enable others skilled in the art to adapted to receive pivot-bolts 3, whereby the IQ which it appertains to make and use the same. accumulatorframe A is pivotally mounted,

This invention relates to calculating-masaid frame being preferably constructed with chines, and particularly to accumulators for a transverse slot or vision-opening 5 to afford such machines; and some of the objects of this means to inspect the numbers on a certain invention are to provide a device of this genportion of the digit-wheels, as will be readily 5 eral character which will be simple and cheap understood. Mounted on a shaft 6, located in construction and at the same time positive in the ends 7 of the accumulator-frame, is a and effective in operation. plurality of digit-wheels 8, having wide teeth It is also an object of this invention to pro- 9, carrying numbers or characters, as shown Vide an accumulator so constructed as to opin Fig. l of the drawings, which numbers reg- 20 erate with aminimum amountof friction and ister with the vision-opening 5. A shaft 10 one which can be run back to Zero by being is suitably mounted in the ends of the supthrown into a reverse position. porting-frame 1, and splined on said shaft are Another object of the invention is to proone or more driving-wheels 11, having teeth vide an accumulator wherein the wheels are constructed to engage the digit-wheels 8 and 5 free, so that the wheels may be rotated by the the carrier-wheels 12, according to the posiaction of the drive-wheel passing from left to tion of the parts, as shown in Figs. 2 and 3 of i ht, the drawings. The shaft 13, Whereon the car- With these and other objects in view the inrier-wheels are mounted, also passes through 7 5 vention consists, essentially, in the construcan eccentric 14, formed on or connected with 3 tion, combination, and arrangement of parts each of the carrier-wheels 12, and on the eccensubstantially as more fully described in the foltric 14 is mounted an eccentric-strap l5, havlowing specification and as illustrated in the ingtceth,and on said strap is mounted the helix accompanying drawings, forming part of this or coil 17, attached to one end of a curved arm 0 application, in which 19, pivotally mounted at the other end thereof 35 Figure 1 is a front elevational view, partly on a shaft 20, and a segmental plate 24 is rigbroken away, illustrating an accumulator in idly mounted within the accumulator-frame position. Fig. 2 isa sectional view of the ac- 4c and is preferably provided with teeth 21, cumulator, illustrating the carrying-wheel 22, and 23, substantially as shown. It will be 8 5 only in engagement with the digitwheels. understood that there is a plurality of wheels 4 Fig. 3 is a view similar to Fig. 2, showing the on each of the shafts and that each set of carrying-wheel in engagement with both the wheels occupies the same transverse plane of digit and driving wheels. Fig. '4: illustrates the shaft, so as to intermesh by the operation a sectional view of a modified form of conof the parts, and that any number of wheels 9 struction wherein a pawl or dog is employed. may be employed and that any characters 45 Fig. 5 shows still another modification wheremay be placed upon the teeth of the digitin an internal gear is employed, and Fig. 6 wheels; also, that the entire construction may shows the carrying-wheel omitted. be inclosed in a partially transparent casing,

only enough of the oscillating case being retained to hold the working parts in position. The carrier-wheels 12 and the digit-wheels 8 mesh, and the digit-wheels are driven by the driving-wheels 11, as in Fig. 2, except in reversing position, when the carrier-wheels 12 are driven directly by the driving-wheels 11, and the carrying-wheels operate the digitwheels substantially as shown in Fig. 3, and every rotation of the carrier-wheels 12 moves a succeeding digit-wheel to the left one space through the mediation of the eccentric 14:, the eccentric-strap 15, and the teeth.

The operation of the construction illustrated in Figs. 1, 2, and 3 will be readily understood from the foregoing description when taken in connection with the accompanying drawings and the following explanation thereof. The accumulator-frame is oscillated so that the driving-wheel 11 meshes with the digit-wheel 8, which in turn is in mesh with the carryingwheel 12, and when in this position the shaft 10 of the driving-wheel is operated in any suitable manner, (not shown,) so that the driving-wheel 11 is turned to the left, as indicated by the arrrow on said wheel in Fig. 2 of the drawings, thereby turning the digitwheel 8 to the right, which in turn rotates the carrying-wheel 12 to the left, the latter wheel being retained against accidental movement by a spring-brake 25. By the rotation of the carrier-wheel to the left the teeth of the eccentric-strap 15 being opposed by the teeth on the segmental pieces, the eccentricstrap 15 is rotated around its axis to the right, thereby tensionizing or winding the spring 17 until the rotation of the eccentric 1; draws the tooth 16 out of engagement with the tooth 23 of the segmental plate 2 1, permitting the spring 17 to rotate the eccentric-strap 15 to the left, when the tooth 16" thereon, engaging the teeth of the digit-wheel of the next higher order, rotates such digit-wheel one place. l/Vhen it is desired to return the digit-wheel to zero, the accumulator-frame L is thrown into the position indicated in Fig. 3, whereby the digit-wheel is thrown out of mesh with the driving-wheel 11, and the carrier-wheel 12 is thrown into engagement therewith. The driving-wheel 11 being rotated as before to correspond to the number indicated by the digit, the latter is rotated in a contrary direction to the normal one, thereby bringing the Zero character to the opening 5 in the accumulator-frame. Should a greater rotation be given than required to bring the digit-wheel to Zero, the tooth 16 of the eccentric-strap will be carried under the tooth 22 on the segmental plate 2 1, and a further rotation to the right of the carrier-wheel will bring these two teeth into contact, thereby preventing further rotation of the digitwheel to the left.

Referring now to the construction illustrated 15, carrying arms or projections 2'7, 28, and

29, the latter supporting a dog 30, normally projected by a spring 31 and being connected with a releasing-rod 32, extending through a slot 33 in the casing 34 of the accumulator, and the arms 27 and 28 are constructed to abut, respectively, against stop-bars 35 and 36 during the rotation of the eccentric let, and the dog 30 being in engagement with the teeth. of the carrying-wheel 12 will rotate said wheel one notch or progression upon every revolution of the eccentric 14:. In order to prevent the carrier-wheel12 from rotating too far, a spring-actuated brake-arm 37 may be suitably mounted within the casing, so that the extremity thereof bears against the carrier-wheels. The construction of the accumulator-casing 34: is similar to that before described and shown in that it is pivotally mounted, so as to oscillate in relation to the driving-shaft 10. The operation of this construction is substantially similar to that before described, and further explanation thereof will not be required.

In Fig. 5 of the drawings there is illustrated still another construction, embodying an interrupted internal segment gear 38, with which operates an eccentric-strap 39, having a plurality of teeth 10, constructed to mesh with the teeth on the internal gear, and the eccentric-strap 39 is desirably provided with a tooth 11, adapted to perform the same function as the tooth 16 on the eccentric-strap 15 in the construction first described. The eccentric-strap 39 is desirably provided with an arm 43, connected by a link M with a spring 15, whereby said strap is retracted upon every rotation of the eccentric 1a, as will be readily understood. The function of the wheel 42 is to rotate the digit-wheel in the contrary direction when the accumulator-frame is oscillated to bring it into mesh with the drivingwheel 11, and the spring 46 bears against the brake-wheel &7 for the same purpose as before described in relation to the spring 25.

It is not desired to confine this invention to the specific construction, combination, and arrangement of parts herein shown and described, and the right is reserved to make all such changes in and modifications of the same as come within the spirit and scope of this invention.

1. An accumulator provided with digit and carrying wheels, eccentrics on the shaft of the latter wheels, eccentric-straps on said eccentries having separate teeth to respectively engage and progress the digit-wheels and to engage stops.

2. An accumulator provided with a shaft carrying an eccentric, straps mounted on said. eccentric, projections on said strap, whereby said eccentric-strap is given a partial rotation inacontrary direction to that of said eccentric scribing Witnesses, at Los Angeles, in the to tensionize the spring" and is released by county of Los Angeles and Stateof California, further rotation of said eccentric, teeth or this 22d day of September, 1902.

pawls on said strap, whereby digit of next HARRY A. BROOKS. 5 higher order is progressed on said release. Witnesses:

In testimony whereof I have signed my name J. WV. KEMP, to this specification, in the presence of two sub- L. B. ALDERETE. 

